Online Books by
Johnson O'Connor
(O'Connor, Johnson, 1891-1973)
A Wikipedia article about this author is available.
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Additional books from the extended shelves:
O'Connor, Johnson, 1891-1973: Aptitudes and the languages (Human engineering laboratory, incorporated, 1944), also by Human Engineering Laboratory (U.S.) (page images at HathiTrust)
O'Connor, Johnson, 1891-1973: Ideaphoria (Human engineering laboratory, incorporated, 1945), also by Samuel Pomeroy Horton and Human Engineering Laboratory (U.S.) (page images at HathiTrust)
O'Connor, Johnson, 1891-1973: Structural visualization (Human engineering laboratory, 1943), also by Human Engineering Laboratory (U.S.) (page images at HathiTrust)
O'Connor, Johnson, 1891-1973: The too many aptitude woman ([Boston] Human Engineering Laboratory, 1941), also by Human Engineering Laboratory (U.S.) (page images at HathiTrust)
O'Connor, Johnson, 1891-1973: The unique individual. (Human Engineering Laboratory, 1948), also by Human Engineering Laboratory (U.S.) (page images at HathiTrust; US access only)
O'Connor, Johnson, 1891-1973: Unsolved business problems (Human engineering laboratory, inc., 1940), also by Human Engineering Laboratory (U.S.) (page images at HathiTrust)
O'Connor, Johnson, 1891-1973: Unsolved business problems (Human Engineering Laboratory, 1953), also by Human Engineering Laboratory (U.S.) (page images at HathiTrust; US access only)
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